... more than 52 The new product FD series “double vertical ring-die pellet mill”, Research,Design,Produced by ... main function is dedusting and discharge steamWorking parts:Ring-die and rollers materials are alloy steel,Heat ... working,Increase press rate then increase capacity,Ring-die is “vertical double-deck”structure,It can use one ... .18500 2012 new product FD series double vertical ring-die pellet mill